I don't think that shipping fees are high. Realize that they aren't just shipping fees only. They are shipping and handling fees. For Ambient these handling fees are to pay at least one person depending on volume to run the warehouse so that your product can be stocked, stored, picked, and packaged, and finally shipped, along with a lot of other warehousing expenses.
We have all been spoiled by Amazon and their warehouse robots. No way a small company like Ambient can do any better. I'm old enough to remember the days before Amazon. Shipping and handling has never been cheap. Whenever you see free shipping don't believe it, you are paying for it in the product price.